Albion's defender has made a temporary move to Kenilworth Road.
Brighton & Hove Albion defender Glen Rea has joined League Two side Luton Town on loan until the end of the season.
It is Rea’s second loan spell of the campaign, after he made 15 appearances for League One side Southend United in the first half of the season.
The 21-year-old central defender will be reunited with Hatters manager and former Albion first-team coach Nathan Jones at Kenilworth Road.
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The Bedfordshire club currently sit 13th in League Two and six points adrift of seventh-place Wycombe Wanderers in the play-off places.
Ireland under-21 international Rea has been with the club for more than a decade, having graduated through the academy system.
Rea made his senior debut against Southend United in the League Cup, and has gained valuable game time by appearing for Albion’s under-21s in recent weeks.